Gaseous



(No Model.) 2 Shets-Sheet 1. W. T. SMITH, G. A. ELY & T. A. BRYAN.

GASEOUS FUEL BURNER.

Patented Apr. 3, 1888.

N PETERS. FhoID'L lhngmpMr. Wuhinglum u. C.

(No Model.) 2- Sheets-Sheet 2. W. T. SMITH, G. A. ELY & T. A. BRYAN.

G'ASEOUS FUEL BURNER.

No. 380,359. Patented Apr. 3, 1888.

UNITED STATES PATENT YVILLIAM T. SMITH, GEORGE A. ELY, AND THOMAS A. BRYAN, OF BALTI- MORE, MARYLAND.

GASEOUS=FUEL BURNER.

. SPECIFICATION forming part of Letters Patent No. 380,359, dated April 3, 18853.

Application filed July 6, 1887.

To aZZ whom, it may concern:

Be it known that we, XVILLIAM T. SMITH, GEORGE A. ELY, and Thomas A. BRYAN, of Baltimore,in the State of Maryland, have invented certain new and useful Improvements in Gaseous-Fuel Burners; and we do hereby declare the following to be a full,clear, and exact description of the invention, such as will onable others skilled in the art to which it ap- IO pertains to make and use the same.

Our invention relates to an improvement in hydrocarbon-gas burners, and more particularly to a type in which hydrocarbon gas is mixed with atmospheric air in the chamber of the burner previous to combustion, and the mixed gases are burned as a fuel for culinary or other heating purposes.

The object of our present invention is to produce ahydrocarbon burner of the type above indicated that will afford a means of regulating the influx of atmospheric air into the gas-and-air-mixing chamber of the burner, so that the respective volumes ofthe air and gas may be exactly graduated to produce a perfect combustion of the mixed gases.

A further object is to construct an oxyhydrocarbou-burner that will afford a means of introducing hot unmixed atmospheric air into the flame derived from the combustion of the 33 mixed volume of air and gas, so as to afford a copious supply of oxygen to the center of the flame and'insure thorough combustion of the compound gaseous fuel.

A further object of our invention is to pro- 5 vide a gas-and-air-burning device that is adjustable as to location, and that may, if desired, be placed in the fire'chamber of an ordinary range or cooking stove, to enable a gaseous fuel to be used in the same.

A further object is to provide a means of deflecting the series of jets of gaseous fuel where they issue from the top of the burner,so that they spread evenly over the top of the burner-head and are mingled with supplemenh 5 ary air-jets, the deflecting device further acting as a guard to prevent the drippings from the broiling of meats from clogging the jetholes of the burner.

A further object is to construct a portable and adjustable gaseous-fuel burner, in which the air and gas may be accurately regulated as to quantities ad mittcd into its mixing-cham- Serial No. 243,516. (No model.)

her, that it may be transported from place to place and utilized for heating or cooking viands or other material, as may be desired, and that from its simplicity may be produced in quantity at alow initial cost.

"With the objects specified in view, our invention consists in certain features of construction and combinations of parts that will be hereinafter described, and pointed out in the claims.

In the drawings making a part ofthis specification, Figure 1 is a side elevation in section through its axial center of the burner. Fig. 2 is a plan view of the burner-head with the deflector-ring removed. Fig. 3 is a plan view of the deflector-ring. Fig. 4 is a top view of the air and-gas-mixing chamber of the burner, with the jet plate and deflector removed. Fig. 5 is a side view of two burners arranged to be supported by spider-legged brackets that adapt the pair of burners to be adjusted in an ordinary stove or cooking-range. Fig. 6 is a modified form of air-inlet gate.

A represents the mixing chamber of the burner. This is made of metal, and is preferably made in the cupped shape shown, although we do not restrict its construction to such a form, as other designs may be used, if desired.

A tubular standard, 13, is made to project downwardly from the center of the chamber A. This standard B is of the same diameter throughout its length, and is partially closed at its lower end, a, the restricted central opening thus formed being screw-threaded to receive the gas-supply nozzle 0. A collar, 7), is formed on the hollow standard B at a proper point above its lower end, and the portion B of the cylindrical shaft or standard 13 that extends below the collar b is perforated at spaced intervals on its side surface. The holes I), being of a suitable size to suit the capacity of the burner, are intended to permit the admission of air into the standard, which answers the double purpose ofa supporting-column for the burner head and also a conducting-tube through which the air and gas areintroduced into the mixing-chamber A of this burner.

Upon the exterior surface of the portion B of standard B a ring, 0, is placed, it being made to fit with an air-tight joint in a manner to allow it to be revolved. The upper edge of the round band or ring 0 contacts with the lower or adjacent surface of the collar 12, against which it is held by the nozzle- 0, as will be explained. 1

Several holes, d, are drilled in through the ring cat proper points to register-with the holes in the standard end B, on which the ring is mounted, and an arm, e, extends laterally from the lower edge of the ring, this arm having a thumb-piece, e, or other means for shifting the ring and causing the holes 01 in it to line with the holes 12 in the end B of the standard, or to change the size of the air-inlet passages by a revoluble movement of the ring, so as to graduate their dimensions from full diameter to an entire closure, as may be required in the operation of the burner. The device for regulating the introduction of air into the vertical hollow standard Bwe designate asan air-inlet gate, and letter it D in the drawings.

While we prefer to construct the air-inlet gate D as just described, it may also bemade without the ring 0 by simply perforating an annular plate, 0', which is shown in Fig. 6, the holes being made in the lower end of the standard to register with the holes in the plate, and thus afford the same results in the matter of a graduation of air-supp] y to the interior of the standard B as is obtained by a perforation of the side wall of the cylindrical standard and its surrounding ring-gate 0. (Shown in Figs. 1 and 5.)

The gas-supply nozzle 0, previously alluded to, is threaded on its body near the upper end to enter the tapped hole in the lower end, B, of the hollow standard B, a shoulder, f, at the lower termination of the threaded portion, restricting the further entrance of the nozzle into the standard. Immediately below the shoulder f on the nozzle 0 the body of the same is enlarged to fit a central hole in the base-plate o of the air-inlet gate D. A further enlargement of the body of this nozzle is made to afford a square shoulder, a", which bears upon the lower surface of the base-plate c with proper force to hold the gate in place and permit it to be moved when desired, but not to be displaced accidentally by ajar.

The enlarged boss 9, the formation of which produces the shoulder a on the nozzle 0, is tapped to receive a tubular nipple, E, which connects by means of an L, h, to the gas-supply pipe F, which latter may be extended by a metal pipe or flexible hose to a source of gassupplysuch as a house-service pipe, or the pillar-cock of a gas-bracket in the room where the device is to be usedand a proper gas-cock (not shown) must be introduced into the gas-pipejust mentioned to control the influx of hydrocarbon gas to the standard B of the burner.

The nozzle 0 is axially perforated above the threaded hole in its lower portion to continue the gas-passage through it, the jet-orifice s in the tip of the nozzle being reduced to give proper force to'the escaping gas while it restricts its volume.

The mixing-chamber A is made level on its top edge, and on the interior of its dished or concave wall a series of short tubes, 0 0 0, &c., are vertically projected, having their top or free ends exactly level with the top or free edge of the mixing-chamber, for a purpose that will be explained.

Thejet-plate G is mounted upon the upper edge of the chamber A, and is secured to it gas-tight at its peripheral edge. This plate is preferably perforated, as shown in Fig. 2, having a series of spaced holes, 3 11, &c., made a proper distance from the circular edge of the plate, and also other holes made near the center and between the larger holes, k, &c., c which are made to exactly register with the holes in the tubes 0 0, 850., so that the air that enters these tubes is conducted to mingle with the aero-gaseous compound which is introduced into the mixing-chamber A, as previously described.

Upon the top of the jetplate G a deflectorring H is secured. This consists of a flat metallic ring, m, which is joined by the radial bars at, that connect to a smaller central ring, 12, these rings and bars being so located as to lie immediately above the jet-holes in the plate G and deflect the streams of gas issuing from the mixing-chamber A, their breadth being sufficient to deflect laterally these jets and cause them while ignited to combine with the rarefied air introduced through the tubes 0 o, dissociating it and absorbing the oxygen to further increase the volume of heat-flame, intensify its energy, and perfectly consume all carbonaceous atoms that are one of the elementary components of the hydrocarbon gas used.

The location of the deflector ring H is such as to prevent the jet-holes from beneath it from being filled up by juices of meat or other 7 articles placed over the flame of the burner, and as the ring is supported a short distance above the top surface of the jet-plate by the thickened ears 1 2 3, formed integral with the ring, and that are perforated to receive the screws 4 5 6, which hold the parts together, there is proper room thus afforded for the escape of the mixed air and gas from the jetholes below the deflector-ring and its divergence to mix with the pure heated air from the tubes 0 0, as stated.

This device may be mounted on a stand to be portable and be connected by gum hose to any convenient gas fixture or pipe where it may be needed, or it may be secured to the spider-brackets M, that will suspend the burn ers from the ordinary holes in the top plate, as shown in Fig. 5, to introduce it into the fire-chamber of a stove or range that ordinarily burns coal as a fuel, so that without any alteration of the construction of the stove or its grate the gas-burners may be placed in position and connected by suitable pipes or hose to a source of gas-supply, thus affording a gaseous-fuel burner for summer use without the expense of a new costly gasstove, as these burners are so simple and inexpensive that they may be afforded at a comparatively low price, and thus supply a popular demand for a means of heat-supply that will be under perfect control and perfectly safe in every way.

As the burner consumes more than equal volumes of air with the gas, it followsthat the consumption of the latter will be comparatively small, and therefore economical, and the combustion being perfect no disagreeable odor will pervade the apartment where the burner is used. 7

Having fully described our invention, what we claim as new, and desire to secure by Let ters Patent, is-

1. The combination, with a hollow vertical standard, an enlarged mixing-chamber communicating with the upper end of the stand ard, and an adjustable air-gate for closing or regulating the size of air-inlet openings in said standard, of a jet-plate located above the mixing-chamber, a deflector-ring above the jetplate, and a gas inlet nozzle discharging into the standard, substantially as set forth.

2. The combination, with a hollow vertical standard and adiametrically-enlarged mixingchamber communicating with the standard and having a fiat upper edge, a jet-plate located over the niixingchamber and provided with a series ofjet-holes, and a deflector-ring placed above the jet-holes, of a gas-inlet nozzle discharging into the standard, and a ring embracing the standard and having a series of holes adapted to register with a series of holes in the standard, substantially as set forth.

3. The combination, with a gas-mixing chamber carrying a jet-plate and a deflector-ring 0 located above the jet-plate, of a hollow standard communicating with the mixing-chamber,

a gas-jet nozzle discharging into the base of the standard, and a ring embracing the standard at a point near the discharge end of the nozzle and provided with a series of holes registering with holes in the standard, substantially as set forth.

4. The combination, with a casing, of ahollow standard therein, a mixing-chamber commu- 5o nicating with the upper end of the standard, and tubes passing through the mixing-chamher for conveying the heated air in the space between the casing and standard up to a point above the mixing-chamber, substantially as set forth.

5. The combination, with the outer casing, the inner hollow standard, the mixing-chamber communicating with the standard, and the tubes for conveying the air from the space between the standard and outer casing up to a point above the mixing-chamber, of the gasjet nozzle discharging into the standard, and the ring embracing the standard and having holes adapted to register with holes in the standard, substantially as set forth.

In testimony whereof we have signed this specification in the presence oftwo subscribing witnesses.

\VM. T. SMITH. GEORGE A. ELY. THOMAS A. BRYAN.

Witnesses:

\VM. H. H. RALEIGH, ROBERT K. COOPER. 

